Home / 3,528.32-5,279.58-2,142.80

Finding the Fourth Proportional to 3,528.32, 5,279.58 and 2,142.80

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Solution

The fourth proportional to 3,528.32, 5,279.58 and 2,142.80 is: 3,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.32 : 5,279.58 = 2,142.80 : x
  2. Step 2: Convert to fraction form
    3,528.32/5,279.58 = 2,142.80/x
  3. Step 3: Cross multiply
    3,528.32x = 5,279.58 × 2,142.80
  4. Step 4: Simplify right side
    3,528.32x = 11,313,084.02
  5. Step 5: Solve for x
    x = 11,313,084.02/3,528.32
  6. Step 6: Final answer
    x = 3,206.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.